typescript-assistant/src/commands/lint.ts

Combines and integrates professional Typescript tools into your project

import { Dependencies } from "../dependencies";
import { Command } from "./command";

export function createLintCommand(deps: Dependencies): Command<void> {
  const { linter, git, logger } = deps;

  return {
    async execute(): Promise<boolean> {
      let timestamp = new Date().getTime();
      let allTypescriptFiles = await git.findAllTypescriptFiles();
      let results = await Promise.all([
        linter.lintOnce(false, allTypescriptFiles),
      ]);
      let toolErrors = results.filter((result) => result === false).length;
      logger.log(
        "lint",
        `Lint task took ${Math.round(
          (new Date().getTime() - timestamp) / 1000
        )} seconds`
      );
      if (toolErrors !== 0) {
        logger.error(
          "lint",
          `${toolErrors} tool${toolErrors === 1 ? "" : "s"} reported errors`
        );
        return false;
      }
      return true;
    },
  };
}